Wongkulab, Panuwat, Wannakorn Homsuwan, Suchada Suphanpayak, and Chaicharn Deerochanwong. 2023. “The Association among Cycle Threshold Value of RT-PCR, Viral Culture in Hospitalized COVID-19 Patients Receiving Corticosteroid Treatment”. Journal of The Department of Medical Services 48 (4):93-99. https://he02.tci-thaijo.org/index.php/JDMS/article/view/263106.